npm: Fix package-lock.json
npm: Fix package-lock.json

Somehow this file got into a weird state, causing breakages across
platforms. Couldn't find any online banter about it, but upgrading to
npm 5.0.1, removing the file, and doing a fresh re-install resolved the
problem.

mbland/url-pointers,mbland/url-pointers,mbland/url-pointers,mbland/custom-links,mbland/custom-links,mbland/custom-links